Dhimmi's in past centuries who lived under a Muslim dominated country lost most of their legal rights and privileges if they did not convert to Islam. Dhimmi’s were also targeted and preyed upon because they were not allowed to testify in courts against Muslims, like Islamic or Sharia courts of today. It made Dhimmi’s easy targets and added incentives for them to hurry up and convert to Islam, or suffer until they do.
Dhimmi's have to pay Jizya a tax for practicing their religion. In other words Islam uses the method of Dhimmi and Jizya to force Islamic conversions when they slowly take over a country.
"No not me I can't afford it, I'm Muslim!"
"Hey you on the donkey are you Dhimmi?"
"No not I, why would I?" "I would lose my rights as a person and have to pay higher taxes." "No I'm Muslim."